Deduplicate and improve
Add some hash route methods.
take and drop aliases for limit and offset
Tidy bulk job verbose output
Don't wrap nils
Join route changes its own graph when it executes.

This needs to be rethought.
fix silliness
Fixed #35 (turned out to be a pacer-neo4j issue; fixed there)
Allow implicit transactions to be dealt with somewhat.
Tweak Exception hierarchy.
Bump version
Make it easy to do one PacerGraph / thread
fix unimportant intermittent failure
Add lookup_ids route.
Add a bunch of handy methods to operate on paths and arrays.
Documentation
Use the getVertices or getEdges methods if a key index exists
Don't create a new graph every reopen is called
Threadlocal copy is a bad idea. Blueprints provides a better implementation of the same idea already.
Allow graphs to change their base vertex or edge wrappers.